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March 26, 2023 06:55
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Rust if文
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fn main() { | |
let x = 5; | |
//if(x == 5) { //←こうも書けるが、コンパイル時に警告が出る | |
if x == 5 { | |
println!("x is 5"); | |
} else { | |
println!("x isn't 5"); | |
} | |
//ifは式だからこんなこともできる。(三項演算子はない) | |
let y = if x == 5 { | |
10 | |
} else { | |
15 | |
}; //y == 10 | |
//let y = if x == 5 { 10 } else { 15 }; //←こんな感じで書くのが一般的 | |
println!("y is {}", y); | |
} |
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